Operations on Complex Numbers

Operations on Complex Numbers

9th - 12th Grade

7 Qs

quiz-placeholder

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Operations on Complex Numbers

Operations on Complex Numbers

Assessment

Quiz

Mathematics

9th - 12th Grade

Practice Problem

Medium

CCSS
HSN.CN.A.2, HSN.CN.C.8, HSN.CN.A.1

Standards-aligned

Used 72+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (38i)+(4+5i)\left(3-8i\right)+\left(-4+5i\right)  

 713i7-13i  

 113i1-13i  

 7+13i-7+13i  

 13i-1-3i  

Tags

CCSS.HSN.CN.A.2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 3(2+4i)(5i)3-\left(-2+4i\right)-\left(5i\right)  

 5i5-i  

 1+9i-1+9i  

 59i5-9i  

 35i3-5i  

Tags

CCSS.HSN.CN.A.2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 6(47i)(3i)(i)-6\left(-4-7i\right)-\left(3i\right)\left(-i\right)  

 24+46i24+46i  

 24+45i24+45i  

 21+42i21+42i  

 2742i-27-42i  

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (13i)+(45i)(6+3i)\left(-1-3i\right)+\left(4-5i\right)-\left(-6+3i\right)  

 311i-3-11i  

 36i3-6i  

 911i9-11i  

 311i3-11i  

Tags

CCSS.HSN.CN.A.2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (83i)(47i)\left(8-3i\right)\left(-4-7i\right)  

 11+68i-11+68i  

 5344i-53-44i  

 53+44i-53+44i  

 1168i11-68i  

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The expression  (2+3i)2\left(2+3i\right)^2   is equal to

 5-5 

 5+12i-5+12i  

 1313  

 13+12i13+12i  

Tags

CCSS.HSN.CN.C.8

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Simplify:  (11+5i)(115i)\left(11+5i\right)\left(11-5i\right)  

 146146  

 121+110i121+110i  

 121110i121-110i  

 12125i2121-25i^2  

Tags

CCSS.HSN.CN.C.8

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